CN105822455A - Device for preparing hot water by using waste heat of automobile engine - Google Patents

Device for preparing hot water by using waste heat of automobile engine Download PDF

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Publication number
CN105822455A
CN105822455A CN201610314121.2A CN201610314121A CN105822455A CN 105822455 A CN105822455 A CN 105822455A CN 201610314121 A CN201610314121 A CN 201610314121A CN 105822455 A CN105822455 A CN 105822455A
Authority
CN
China
Prior art keywords
water
automobile engine
temperature sensor
pump
hot water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610314121.2A
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Chinese (zh)
Inventor
李然
李旭
漆贵云
毛珂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU YUNENGTONG ENERGY DEVELOPMENT Co Ltd
Original Assignee
CHENGDU YUNENGTONG ENERGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDU YUNENGTONG ENERGY DEVELOPMENT Co Ltd filed Critical CHENGDU YUNENGTONG ENERGY DEVELOPMENT Co Ltd
Priority to CN201610314121.2A priority Critical patent/CN105822455A/en
Publication of CN105822455A publication Critical patent/CN105822455A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02GHOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00Profiting from waste heat of combustion engines, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/16Arrangements or adaptations of other passenger fittings, not otherwise provided for of cooking or boiling devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a device for preparing hot water by using waste heat of an automobile engine, relates to an automobile auxiliary facility and is applicable to residence vehicles. The device is characterized by comprising a liquid-liquid heat exchanger, a hot water tank and a heat circulation control unit, wherein the hot water tank and a circulation branch of the liquid-liquid heat exchanger form a first loop; the other circulation branch of the liquid-liquid heat exchanger is connected to an automobile engine cooling liquid circulation loop; the heat circulation control unit is used for controlling liquid circulation in the first loop.

Description

A kind of device utilizing automobile engine residual heat to exchange hot water for
Technical field
The present invention relates to automobile auxiliary equipment, a kind of device utilizing automobile engine residual heat to exchange hot water for, it is adaptable to lodging vehicle (caravan).
Background technology
The utilization of the most traditional automobile engine residual heat is only limitted to warm air system in car, and the waste heat manifold supercooling liquid of electromotor be medium in radiator is discharged into air, and be underutilized.
The domestic hot-water of lodging vehicle obtains the gas heating that the many employings of mode are traditional, fuel Heating or external power supply heating at present, is in other words required for the supply that the extra energy carries out heating to meet lodging vehicle domestic hot-water.
Summary of the invention
The technical problem to be solved is: for the problem of above-mentioned existence, it is provided that a kind of device utilizing automobile engine residual heat to exchange hot water for.
In view of one rational temperature of the normal job demand of automobile engine, the lowest or the highest normal work being all unfavorable for electromotor of engine temperature, manual control heat exchange will affect the optimum working temperature of electromotor opportunity.
To this end, the technical solution used in the present invention is as follows: include heat exchanger, boiler and thermal cycle control unit;Described boiler forms the first loop with a circulation branch road of heat exchanger;Another circulation branch road and the access automobile engine heat radiation closed circuit of heat exchanger;Described thermal cycle control unit is for controlling the liquid circulation in the first loop.
Further, described thermal cycle control unit is for detecting the temperature of automobile engine heat radiation closed circuit medium, and starts the liquid circulation in the first loop when the temperature of described medium is higher than first threshold.
Further, described thermal cycle control unit is additionally operable to detect the water temperature in boiler, and closes the liquid circulation in the first loop when the water temperature in boiler is more than Second Threshold.
Further, described thermal cycle control unit includes the first temperature sensor, pump and controller;
Described first temperature sensor, for detecting described temperature, has signal with controller and is connected;
Pump is connected in described first loop, also has signal with controller and is connected;
Described controller is for starting pump when the signal of the first temperature sensor output is more than first threshold.
Further, described thermal cycle control unit also includes the second temperature sensor;
Described second temperature sensor, for detecting the water temperature in boiler, also has signal and is connected with controller;
Described controller is for cutting out pump when the signal of the second temperature sensor output is more than Second Threshold.
Further, described controller is single-chip microcomputer.
Further, described controller includes the first comparator and the second comparator;
First comparator and the first temperature sensor have signal and connect, and for the output valve of the first temperature sensor being compared with first threshold, control pump when the output valve of the first temperature sensor is more than first threshold and open;
Second comparator and the second temperature sensor have signal and connect, and for the output valve of the second temperature sensor being compared with Second Threshold, control pump when the output valve of the second temperature sensor is more than Second Threshold and close.
Further, cold water storage cistern and water mixing valve are also included;The outlet of described cold water storage cistern is connected with the first water inlet of water mixing valve, and another outlet of boiler is connected with the second water inlet of water mixing valve;Water mixing valve has at least one outlet.
Further, the second water pump and the 3rd water pump are also included;Described second water pump is connected to described in boiler on the pipeline between another outlet and water mixing valve;Described 3rd water pump is connected on the pipeline between cold water storage cistern outlet and water mixing valve.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
The present invention is by the temperature monitoring of engine radiating blood circulation medium and the monitoring of water temperature, auto-controll operation heat-exchanger rig in boiler, being exchanged for hot water by engine exhaust heat, be stored in boiler to live and being used;Achieve the waste heat of automobile engine in the case of not affecting engine work effectively, sufficiently utilize, save the energy and reduce the hot water supply cost of lodging vehicle.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the theory diagram of one embodiment of the invention.
Fig. 2 is the theory diagram of another embodiment of the present invention.
Fig. 3 is the theory diagram of an embodiment of coolant circuit in the present invention.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, in addition to mutually exclusive feature and/or step, all can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, all can be by other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, an example during each feature is a series of equivalence or similar characteristics.
As it is shown in figure 1, the present embodiment includes that liquid is to liquid heat exchanger, boiler and thermal cycle control unit.The thermal source that the present embodiment uses is automobile engine cooling liquid, in other embodiments, when the radiating mode of automobile engine does not uses coolant, so thermal source can be the material of other forms, such as gas, accordingly, liquid one-tenth the most replaceable to liquid heat exchanger gas is to liquid heat exchanger.
The water inlet of the first circulation branch road of liquid heat exchanger is connected by the outlet of described boiler with liquid, the outlet of the first circulation branch road of liquid heat exchanger is connected by liquid with the water inlet of boiler, and boiler forms the first loop with liquid to the first circulation branch road of liquid heat exchanger;Thermal cycle control unit is for controlling the liquid circulation in the first loop.
Liquid also has the second circulation branch road to liquid heat exchanger, and the second circulation branch road accesses in automobile engine cooling liquid closed circuit.Particularly the water inlet of the second circulation branch road is connected with the coolant delivery outlet of automobile engine, and the outlet of the second circulation branch road is connected with the coolant input port of automobile engine.
In another embodiment, Fig. 3 is seen.Two threeways are accessed in original automobile engine cooling liquid closed circuit, wherein, the water inlet of the second circulation branch road of liquid heat exchanger is connected by the 3rd end (two accessed in threeway in coolant closed circuit ends are referred to as the first end, the second end) of the threeway of nearly automobile engine cooling liquid delivery outlet with liquid, and the outlet of the second circulation branch road of liquid heat exchanger is connected by the 3rd end (two accessed in threeway in coolant closed circuit ends are referred to as the first end, the second end) of the threeway of nearly automobile engine cooling liquid input port with liquid.I.e. in automobile engine cooling liquid closed circuit, increase a parallel branch by two threeways, for the ease of controlling also to set up cycler in this parallel branch, such as controllable valve.As a deformation of this embodiment, a pump can be used as cycler or when parallel branch has and follows controllable valve, then set up a pump, increase the circulation power of coolant.Cycler in parallel branch and/or pump can be connected with a controller or directly by manually carrying out hand control.
Liquid is existing product to liquid exchange, does not repeats them here its internal structure.
One embodiment of thermal cycle control unit includes: temperature sensor 1, pump and controller;Described temperature sensor 1, for detecting the temperature of coolant, has signal with controller and is connected;Pump is connected in described first loop, also has signal with controller and is connected.
Described controller is for starting pump when the signal of the first temperature sensor output is more than first threshold.
One deformation of the present embodiment is to set up temperature sensor 2;Described temperature sensor 2, for detecting the water temperature in boiler, also has signal and is connected with controller;Described controller cuts out pump when the signal that temperature sensor 2 exports is more than Second Threshold.
Wherein, first threshold refers to ensure the lowest set temperature of the coolant of engine work, and when coolant temperature is less than this lowest set temperature, this device does not the most obtain heat not affect engine work from coolant.Second Threshold refers to the highest setting value of boiler water temperature, does not the most continue heating when boiler water temperature over-high.
In more specifically heat exchange control unit embodiment, described controller is single-chip microcomputer, and in the present embodiment, single-chip microcomputer only does the numeric ratio of routine relatively.
In still another embodiment, described controller includes comparator 1 and comparator 2.
Comparator 1 has signal with temperature sensor 1 and is connected, and for the output valve of temperature sensor 1 being compared with first threshold, controls pump when the output valve of temperature sensor 1 is more than first threshold and opens;Comparator 2 has signal with temperature sensor 2 and is connected, and for the output valve of temperature sensor 2 being compared with Second Threshold, controls pump when the output valve of temperature sensor 2 is more than Second Threshold and closes.
The circuit structure of above two valve controling circuit can ensure that and utilizes engine exhaust heat not interfere with the properly functioning of automobile engine when heating domestic water.
It is expanded on further in conjunction with operation principle of the present invention below.
When coolant temperature is more than setting value, the pump startup in the first loop, the loop that therefore liquid heat exchanger is formed by boiler, water pump and liquid is unimpeded, and the water of boiler flows under the effect of water pump in the first loop.The coolant of automobile engine can flow out from electromotor under the pumping action that electromotor carries, and returns to engine interior after the liquid the second circulation branch road to liquid heat exchanger;Or flow out from the 3rd end of the threeway of nearly coolant delivery outlet under the common effect of the pump in pump that coolant carries at electromotor and described parallel branch, through flowing back to from the 3rd end of the threeway of nearly coolant input port after the liquid the second circulation branch road to liquid heat exchanger.
In a heat exchanger, the water during the heat of coolant passes to loop 1 so that it is heating up, the water after intensification returns to boiler, after the water temperature of boiler is more than setting value, the pump in the first loop quits work, and the liquid circulation in the first loop stops.
Second embodiment
The present embodiment adds cold water storage cistern and water mixing valve on the basis of above-described embodiment.
Referring to Fig. 2, the outlet of described cold water storage cistern is connected with the cold water inlet of water mixing valve, and another outlet of boiler is connected with the water inlet of hot water of water mixing valve;Water mixing valve has at least one outlet.
So people by the mixed proportion of water mixing valve regulation hot water with cold water, and then may regulate water temperature, more convenient.
On the basis of the second embodiment, also can set up water pump 2 and water pump 3;Described water pump 2 is connected to described in boiler on the pipeline between another outlet and water mixing valve;Described water pump 3 is connected on the pipeline between cold water storage cistern outlet and water mixing valve.Hydraulic pressure can be increased, it is ensured that use discharge after increasing water pump.
The invention is not limited in aforesaid detailed description of the invention.The present invention expands to any new feature disclosed in this manual or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.

Claims (10)

1. one kind utilizes the device that automobile engine residual heat exchanges hot water for, it is characterised in that include heat exchanger, boiler and thermal cycle control unit;
Described boiler forms the first loop with a circulation branch road of heat exchanger;
Another circulation branch road and the access automobile engine heat radiation closed circuit of heat exchanger;
Described thermal cycle control unit is for controlling the liquid circulation in the first loop.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 1, it is characterized in that, described thermal cycle control unit is for detecting the temperature of automobile engine heat radiation closed circuit medium, and starts the liquid circulation in the first loop when the temperature of described medium is higher than first threshold.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 2, it is characterized in that, described thermal cycle control unit is additionally operable to detect the water temperature in boiler, and closes the liquid circulation in the first loop when the water temperature in boiler is more than Second Threshold.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 2, it is characterised in that described thermal cycle control unit includes the first temperature sensor, pump and controller;
Described first temperature sensor, for detecting the temperature of described medium, has signal with controller and is connected;
Pump is connected in described first loop, also has signal with controller and is connected;
Described controller is for starting pump when the signal of the first temperature sensor output is more than first threshold.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 4, it is characterised in that described thermal cycle control unit also includes the second temperature sensor;
Described second temperature sensor, for detecting the water temperature in boiler, also has signal and is connected with controller;
Described controller is for cutting out pump when the signal of the second temperature sensor output is more than Second Threshold.
6. according to a kind of device utilizing automobile engine residual heat to exchange hot water for described in claim 4 or 5, it is characterised in that described controller is single-chip microcomputer.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 5, it is characterised in that described controller includes the first comparator and the second comparator;
First comparator and the first temperature sensor have signal and connect, and for the output valve of the first temperature sensor being compared with first threshold, control pump when the output valve of the first temperature sensor is more than first threshold and open;
Second comparator and the second temperature sensor have signal and connect, and for the output valve of the second temperature sensor being compared with Second Threshold, control pump when the output valve of the second temperature sensor is more than Second Threshold and close.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 1, it is characterised in that also include cold water storage cistern and water mixing valve;
The outlet of described cold water storage cistern is connected with the first water inlet of water mixing valve, and another outlet of boiler is connected with the second water inlet of water mixing valve;Water mixing valve has at least one outlet.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 8, it is characterised in that also include the second water pump and the 3rd water pump;Described second water pump is connected to described in boiler on the pipeline between another outlet and water mixing valve;Described 3rd water pump is connected on the pipeline between cold water storage cistern outlet and water mixing valve.
A kind of device utilizing automobile engine residual heat to exchange hot water for the most according to claim 1, it is characterized in that, after another circulation branch road described of heat exchanger is connected with branch road cycler, a certain section of engine radiating closed circuit original with automobile again is in parallel.
CN201610314121.2A 2016-05-13 2016-05-13 Device for preparing hot water by using waste heat of automobile engine Pending CN105822455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610314121.2A CN105822455A (en) 2016-05-13 2016-05-13 Device for preparing hot water by using waste heat of automobile engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610314121.2A CN105822455A (en) 2016-05-13 2016-05-13 Device for preparing hot water by using waste heat of automobile engine

Publications (1)

Publication Number Publication Date
CN105822455A true CN105822455A (en) 2016-08-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110296623A (en) * 2019-07-16 2019-10-01 一汽解放汽车有限公司 A kind of engine testing room residual-heat utilization method
CN113043809A (en) * 2021-04-14 2021-06-29 中国重汽集团济南动力有限公司 Vehicle-mounted water storage mechanism heated by tail gas and heating method
CN113043974A (en) * 2021-04-14 2021-06-29 中国重汽集团济南动力有限公司 On-vehicle water weighing mechanism of adjustable temperature formula suitable for medium and heavy truck

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007247964A (en) * 2006-03-15 2007-09-27 Nippon Oil Corp Cogeneration system
CN202132127U (en) * 2011-02-25 2012-02-01 王爱新 Waste hot water recovery and application module of marine diesel engine
CN202641472U (en) * 2012-04-29 2013-01-02 上海同捷科技股份有限公司 Drinking water supply system for automobile
CN203584531U (en) * 2013-12-06 2014-05-07 湖北鹰牌动力科技有限公司 System for using residual heat of tail gas of generator set
CN203584573U (en) * 2013-12-06 2014-05-07 湖北鹰牌动力科技有限公司 Power generator unit for engine cooling liquid afterheat utilization
CN104165422A (en) * 2013-05-17 2014-11-26 广东美的暖通设备有限公司 Water side heat exchange system, water source heat pump air conditioner and control method thereof
CN105317584A (en) * 2015-11-12 2016-02-10 重庆长安汽车股份有限公司 Energy recovery system and method for automobile engine
CN205638725U (en) * 2016-05-13 2016-10-12 成都宇能通能源开发有限公司 Utilize automobile engine waste heat to gain hydrothermal device for

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007247964A (en) * 2006-03-15 2007-09-27 Nippon Oil Corp Cogeneration system
CN202132127U (en) * 2011-02-25 2012-02-01 王爱新 Waste hot water recovery and application module of marine diesel engine
CN202641472U (en) * 2012-04-29 2013-01-02 上海同捷科技股份有限公司 Drinking water supply system for automobile
CN104165422A (en) * 2013-05-17 2014-11-26 广东美的暖通设备有限公司 Water side heat exchange system, water source heat pump air conditioner and control method thereof
CN203584531U (en) * 2013-12-06 2014-05-07 湖北鹰牌动力科技有限公司 System for using residual heat of tail gas of generator set
CN203584573U (en) * 2013-12-06 2014-05-07 湖北鹰牌动力科技有限公司 Power generator unit for engine cooling liquid afterheat utilization
CN105317584A (en) * 2015-11-12 2016-02-10 重庆长安汽车股份有限公司 Energy recovery system and method for automobile engine
CN205638725U (en) * 2016-05-13 2016-10-12 成都宇能通能源开发有限公司 Utilize automobile engine waste heat to gain hydrothermal device for

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110296623A (en) * 2019-07-16 2019-10-01 一汽解放汽车有限公司 A kind of engine testing room residual-heat utilization method
CN110296623B (en) * 2019-07-16 2020-08-14 一汽解放汽车有限公司 Engine laboratory waste heat utilization method
CN113043809A (en) * 2021-04-14 2021-06-29 中国重汽集团济南动力有限公司 Vehicle-mounted water storage mechanism heated by tail gas and heating method
CN113043974A (en) * 2021-04-14 2021-06-29 中国重汽集团济南动力有限公司 On-vehicle water weighing mechanism of adjustable temperature formula suitable for medium and heavy truck

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Application publication date: 20160803